TW201707408A - Component carrier selection for tune-aways in mobile communication devices - Google Patents

Abstract

Various embodiments include methods implemented on a mobile communication device for performing a tune-away from a first subscription to a second subscription on a mobile communication device, in which the first subscription includes a plurality of component carriers. The methods may include determining a subset of component carriers from the plurality of component carriers available to use in a scheduled tune-away, determining a quality measure for each component carrier in the subset of component carriers before or during the scheduled tune-away, selecting a component carrier in the subset of component carriers having the lowest quality measure, and tuning away from the selected component carrier to the second subscription during the scheduled tune-away.

Description

Component carrier selection for tune away in mobile communication devices

The present invention relates to component carrier selection for tune away in a mobile communication device.

Some designs of mobile communication devices (eg, smart phones, tablets, and laptops) include one or more User Identity Module ("SIM") cards that provide the user with multiple separate actions Access to the telephone network. Examples of mobile telephone networks include third generation (3G), fourth generation (4G), long term evolution (LTE), time division multiplex access (TDMA), frequency division multiplexing access (FDMA), and multiple code divisions. Access (CDMA), Wideband CDMA (WCDMA), Time Division Synchronous CDMA (TD-SCDMA), Global System for Mobile Communications (GSM), Universal Mobile Telecommunications System (UMTS), Evolutionary High Speed Packet Access (HSPA+), Dual Cellular High Speed Packet Access (DC-HSPA), Evolutionary Data Optimization (EV-DO), GSM Evolution Enhanced Data Rate (EDGE) and Single Carrier Radio Transmission Technology (1xRTT). A mobile communication device that includes one or more SIMs and that uses one or more shared radio frequency ("RF") resources/radio connections to two or more separate mobile telephone networks may be referred to as a multi-SIM mobile communication device. One example is a dual SIM dual standby ("DSDS") communication device that includes two SIM cards/subscriptions each associated with a separate radio access technology ("RAT"), and the separate The RAT shares an RF resource chain to communicate with two separate mobile phone networks on behalf of their respective subscriptions. When one RAT is using RF resources, the other RAT is in standby mode and cannot communicate using RF resources.

One consequence of having multiple RATs that maintain a network connection is that the RATs may sometimes interfere with each other's communications. For example, two RATs on a DSDS communication device utilize shared RF resources to communicate with their respective mobile telephone networks, and only one RAT at a time can use RF resources to communicate with the RAT's mobile network. Even when the RAT is in the "idle-standby" mode (indicating that the RAT is not actively communicating with the network), the RAT may still need to periodically receive access to the shared RF resources in order to perform various network operations. For example, an idle RAT may require shared RF resources at regular intervals to perform idle mode operations for receiving network paging messages on behalf of the subscription of the RAT in order to remain connected to the network or the like.

In a conventional multi-SIM mobile communication device, a RAT that actively uses RF resources shared with an idle RAT may occasionally be forced to interrupt RF operations of the active RAT such that the idle RAT may use the shared RF resources to perform idle of the idle RAT - Standby mode operation (eg, paging monitoring and decoding, cell reselection, system information monitoring, etc.). This procedure of switching access to shared RF resources from the active RAT to the idle RAT is sometimes referred to as "tune-away" because the RF resources are tune away from the frequency band or channel of the active RAT and tuned to the idle RAT Band or channel. After the idle RAT has completed network communication, access to the RF resources can be switched from the idle RAT to the active RAT via a "tune-back" operation.

Some advanced RATs may have additional features. For example, an LTE mobile telephone network may be capable of supporting more than one communication channel or transmit/receive chain using only one RF resource via carrier aggregation. The multi-SIM communication device may have RF resources supporting a primary component carrier (PCC) and one or more secondary component carriers (SCC). The PCC may include an uplink carrier channel and a downlink carrier channel on the primary cell, and each SCC may be a downlink carrier channel on the secondary cell. For example, a SIM with LTE Class 6 ("CAT6") capability may include one PCC (uplink and downlink) and two SCCs, both of which are used as downlink carriers, ie, receive chains.

During tune-away in such devices, the RF resource may select one of the SCC downlink or one of the uplink component carriers of the LTE subscription to tune away to other subscriptions, which may be GSM subscriptions or other 3G technologies. . The selected SCC may not be able to receive data from the network during the tune away. Currently, the selection of which SCC is selected in the tune away from other subscriptions does not take into account the quality of the SCC. For example, the first SCC of the LTE subscription can share the transceiver with the GSM subscription. The first SCC may have a higher downlink data throughput than the second SCC subscribed to by the LTE. However, because the first SCC shares the transceiver with the GSM subscription, the mobile communication device can preset to tune away from the first SCC to the GSM subscription during the tune away. This results in an overall lower data throughput on the LTE subscription during the tune away because the SCC with higher data throughput becomes unavailable during tune away.

Various embodiments include a method implemented on a mobile communication device for performing a tune away from a first subscription to a second subscription on a mobile communication device, wherein the first subscription includes a plurality of component carriers. Various embodiment methods can include determining, from the plurality of component carriers, a subset of component carriers usable for use in scheduled round-off; determining a subset of component carriers before or during scheduled round-off a quality measurement result of each of the component carriers; selecting a component carrier having a lowest quality measurement result in a subset of the component carriers; and, during the scheduled handover, from the selected component carrier to the Second subscription.

In some embodiments, the quality measurement result may include a historical data delivery amount prior to being scheduled for separation. In such an embodiment, the historical data transport amount of the downlink component carrier may include a transport block size or a channel quality indicator, and the historical data transport amount of the uplink component carrier may include a transport block size or modulation and coding. Program value.

In some embodiments, the quality measurement result can include a predicted amount of data delivery during the scheduled tune away. In such an embodiment, the predicted data throughput of the downlink component carrier may be determined as SE _i (k) * RB _i (k) * (1 - ER _i ), where SE _i (k) is a sub-information The spectral efficiency of the ith component carrier at block k , RB _i (k) is the resource block size of the ith component carrier at subframe k , and ER _i is the error of the ith component carrier rate. In such an embodiment, the predicted data throughput of the uplink component carrier may be determined as instTB _i (k) * (1 - ER _i ), where instTB _i (k) is the ith at subframe k The transient transport block size of the component carriers, and ER _i is the error rate of the i- th component carrier.

In some embodiments, determining, from the plurality of component carriers, a subset of component carriers usable for use in the scheduled round-off may include determining whether there is any uplink in the plurality of component carriers a downlink component carrier associated with the component carrier; and, in response to determining that there is a downlink component carrier that is not associated with any uplink component carrier in the plurality of component carriers, the selection is not associated with any uplink component carrier The associated downlink component carrier is a subset of the component carriers.

In some embodiments, determining, from the plurality of component carriers, a subset of component carriers usable for use in the scheduled round-off may include determining whether the transmitter and receiver in the mobile communication device are attached And, in response to determining that the transmitter and the receiver in the mobile communication device are not accompanied, the plurality of component carriers are selected as a subset of the component carriers. In some embodiments, determining, from the plurality of component carriers, a subset of component carriers usable for use in the scheduled round-off may include determining a downlink component carrier in the plurality of component carriers Whether the data transmission amount is greater than the data transmission amount on the uplink component carrier in the plurality of component carriers; in response to determining that the data transmission amount on the downlink component carrier is greater than the data transmission amount on the uplink component carrier, Selecting the downlink component carrier as a subset of component carriers; and selecting the uplink component in response to determining that a data transmission amount on the downlink component carrier is not greater than a data transmission amount on the uplink component carrier The carrier acts as a subset of the component carriers.

In some embodiments, tune away from the selected component carrier to the second subscription during the scheduled tune away may include: from the selected component carrier and the selected one during the scheduled tune away Both component carriers associated with the component carrier are tune away.

A further embodiment includes a mobile communication device including a processor configured with processor-executable instructions for performing the operations of the embodiments methods described herein. Further embodiments include a non-transitory processor readable storage medium having processor executable software instructions stored thereon, the processor executable software instructions being configured to cause a processor to perform the method embodiments described herein Operation. A further embodiment includes a mobile communication device that includes elements for performing the functions of the operations of the embodiments methods described herein.

Various embodiments will be described in detail with reference to the drawings. Wherever possible, the same reference numerals are used to refer to the References made to particular examples and implementations are for illustrative purposes and are not intended to limit the scope of the claims.

As used herein, the terms "SIM", "SIM card" and "user identity module" are used interchangeably to mean that they may be integrated circuits or embedded in a removable card and store the identity of the international mobile user ( IMSI), associated keys and/or memory for identifying and/or authenticating mobile communication devices on the network and other information for implementing communication services using the network. Since the information stored in the SIM enables the mobile communication device to establish a communication link with a particular communication service or a plurality of specific communication services for a particular network, the term "SIM" is also used herein as a pair and stored in a particular SIM. The information is associated and shorthand referenced to the communication service via the information stored in the particular SIM, since the SIM and the communication network and the services and subscriptions supported by the network are related to each other. Similarly, the term SIM can also be used as a shorthand for protocol stacking and/or data machine stacking and communication procedures used in establishing and directing communication services utilizing subscriptions and networks via information stored in a particular SIM. Quote.

As used herein, the terms "mobile communication device," "multi-SIM mobile communication device," "multi-SIM communication device," and "multi-SIM device" are used interchangeably to describe a mobile communication configured to have more than one SIM. device.

The terms "network", "wireless network", "honeycomb network" and "honeycomb wireless communication network" are used interchangeably herein to refer to a subscription associated with a mobile communication device and/or a mobile communication device. Part or all of the wireless network of the carrier.

Wireless communication networks are widely deployed to provide various communication services such as voice, packet data, broadcast, messaging, and the like. These wireless networks can support communication for multiple users by sharing available network resources. Examples of such wireless networks include LTE, GSM, CDMA, TDMA, FDMA, 1xRTT, W-CDMA, CDMA2000, and the like.

Modern mobile communication devices (e.g., smart phones) may each include one or more SIM cards containing SIMs that enable users to connect to different mobile networks while using the same mobile communication device. Each SIM is used to identify and authenticate users who use a particular mobile communication device, and each SIM is associated with only one subscription. For example, the SIM may be associated with a subscription to one of LTE, GSM, TD-SCDMA, CDMA2000, and WCDMA.

Although specific receiver operations are described herein with reference to the number of twos (ie, two RF resources, two antennas, two RF chains, etc.), such references are used as examples and are not meant to be excluded. An embodiment of three or more RF resources. The term "receiver" and/or "transmitter" may indicate the RF chain and/or the portion of the RF receive chain that is being used for the wireless link. Such portions of the RF chain may include, without limitation, components of the RF front end, RF front end (including receiver units and/or transmitter units), antennas, and the like. Portions of the RF chain can be integrated into a single wafer or distributed across multiple wafers. In addition, portions of the RF resources, RF chains, or RF chains can be integrated into the wafer along with other functions of the mobile communication device. Further, in some embodiments of the wireless system, the mobile communication device can be configured with more RF chains than the spatial stream to achieve reception and/or transmit diversity to improve signal quality.

The mobile communication device can have an RF resource that supports multiple SIMs. For example, in a dual SIM dual standby (DSDS) device, the mobile communication device supports two SIMs, which share one RF resource. One SIM can support advanced communication networks such as LTE subscriptions, while another SIM can support legacy communication networks such as GSM, CDMA or WCDMA. RF resources may be capable of supporting carrier aggregation for LTE subscriptions. That is, the LTE subscription may include multiple carriers, including a primary component carrier (PCC) and one or more secondary component carriers (SCC). The primary cell of the PCC includes the primary uplink and downlink carriers of the subscription, and the secondary cells of the SCC can be used as an additional receive chain (downlink carrier) or a transmit chain (uplink carrier) to improve data transmission. the amount. LTE subscriptions can support carrier aggregation in order to implement multi-carrier communication features for LTE subscriptions.

In a mobile communication device having multiple subscriptions sharing one RF resource, the RF resources can be tune away from the active subscription to the idle subscription so that the idle subscription can perform idle mode operations. For example, a mobile communication device with an active LTE subscription can periodically tune away to an idle GSM subscription. During the tune away, one of the component carriers of the LTE subscription may be selected for tune away from the GSM subscription. The primary cells of the LTE subscription may still be active during the tune away.

Each downlink or uplink component carrier may have an associated quality measurement result that describes the data throughput capability of the component carrier at a particular time period in time (eg, a subframe). One component carrier may have a higher quality measurement result than the other component carrier during the scheduled tune away. However, in the conventional system, the selection of the component carrier used in the tune away does not depend on any quality measurement result of the component carrier, but instead is based on a specific preset rule (for example, sharing the same transmission and reception with other subscriptions). The component carrier of the machine or the selection between the component carriers is replaced. Therefore, component carriers that are sometimes selected for tune away may actually have a higher amount of data transfer than other available component carriers. The component carrier with the lowest data throughput can be selected for use in the tune away to maximize the overall data throughput of the subscribers that are aggregated by the carrier during the tune away from another subscription.

The systems, methods, and apparatus of various embodiments enable a mobile communication device to select component carriers for use in tune away based on quality measurements of available component carriers (which may be downlink carriers or uplink carriers). The mobile communication device processor can schedule the tune away from the first subscription of the mobile communication device to the second subscription, wherein the first subscription includes a plurality of downlink and uplink component carriers. For example, the first subscription may be capable of carrier aggregation and thus have a PCC and two or more SCCs, which may each comprise a downlink component carrier and/or an uplink component carrier .

The device processor may determine a subset of the component carriers of the first subscription that are available for use in the scheduled round-off (i.e., available for the second subscription during the tune away). The device processor can decide whether the first subscription has any downlink component carriers that are not associated with any uplink component carriers. For example, a first subscription may have multiple uplink and downlink component carriers, and some downlink component carriers may be associated with an uplink component carrier, while other downlink component carriers may not be associated with any The uplink component carrier is associated. A downlink component carrier that does not have any associated uplink component carrier may be included in a subset of the first subscription's component carriers that are available for use in the scheduled round-off.

If each downlink component carrier is associated with an uplink component carrier, the device processor can determine if the transmitter and receiver antennas of the RF resource are accompanied. If the transmitter and receiver are not attached, the subset of component carriers available for use in the scheduled round-off may include all of the downlink component carrier and the uplink component carrier of the first subscription ( If the transfer during the transfer is necessary).

If the transmitter and receiver are accompanied, the device processor can determine if the amount of downlink data transmission for the first subscription is greater than the amount of uplink data transmission. If the downlink data transmission amount is greater than the uplink data transmission amount, the subset of component carriers available for use in the scheduled round-off may include all downlink component carriers of the first subscription because of the downlink The amount of data transferred will be affected to a large extent. If the uplink data transmission amount is greater than the downlink data transmission amount, the subset of component carriers available for use in the scheduled round-off may include all uplink component carriers of the first subscription because of the uplink The amount of data transferred will be affected to a large extent.

The device processor may determine the quality measurement result for each component carrier of the component carriers in the subset of component carriers before or during the scheduled tune away. The quality measurement result may be the historical data delivery amount of each component carrier before the scheduled tune away, or the predicted data delivery amount of each component carrier during the scheduled tune away period. If the quality measurement result is the historical data transmission amount of the downlink component carrier, the device processor can compare the transmission block size of each downlink component carrier, wherein the larger transmission block size indicates higher data transmission. the amount. If the transport block size of each downlink component carrier is equal, the device processor can compare the channel quality indicator (CQI) of each downlink component carrier, where a larger CQI indicates a higher data. Delivery volume.

If the product is a quality measurement result of the predicted downlink component carrier information transport amount, the device processor may calculate the predicted amount of information conveyed as _{follows: SE i (k) * RB} i (k) * (1 - ER _i ), where SE _i (k) is the spectral efficiency of the i- th downlink component carrier at subframe k (when the subframe is shifted from being scheduled), RB _i (k) is the subframe The resource block size of the i th downlink component carrier at k , and ER _i is the bit error rate of the i th downlink component carrier. The bit error rate can be a block error rate or a packet error rate.

If the quality measurement result is the historical data transmission amount of the uplink component carrier, the device processor can compare the transmission block size of each uplink component carrier, wherein the larger transmission block size indicates higher data transmission. the amount. If the transport block sizes of each uplink component carrier are equal, the device processor can compare the modulation and coding scheme (MCS) values for each uplink component carrier, with a larger MCS value indicating a higher The amount of data delivered.

If the quality measurement result is the predicted data delivery amount of the uplink component carrier, the device processor can calculate the predicted data delivery amount as follows: instTB _i (k) * (1 - ER _i ), where instTB _i (k) is the allocated transient transport block size of the i- th uplink component carrier at subframe k (when the subframe is shifted from being scheduled), and ER _i is the ith uplink The bit error rate of the link component carrier. The bit error rate can be a block error rate or a packet error rate.

The device processor can be tune away from the component carrier with the lowest quality quality measurement result to the second subscription during the scheduled tune away. For example, when the first subscription includes the first and second downlink carriers, the device processor may respond to the quality measurement result that determines that the quality measurement result of the first downlink carrier is higher than the second downlink carrier. And tune away from the second downlink carrier. Alternatively, the device processor may respond to the quality determination result of the first downlink carrier from being lower than the quality measurement result of the second downlink carrier during the scheduled handover period from the first downlink. The link carrier is tune away to the second subscription. If the receiver and transmitter are accompanied, both the selected component carrier and its associated component carrier (eg, the downlink and uplink carriers of the same SCC) can be used to tune away to the second subscription. . If the component carrier is not compliant, but the second subscription will use both the downlink component carrier and the uplink component carrier during the tune away, the device processor can make a downlink for the second subscription during the tune away. A separate selection of link component carrier and uplink component carrier.

In the following description of various embodiments, reference is made to the first subscription and the second subscription and the corresponding first carrier and second carrier. References to the first and second subscriptions or the first and second carriers are arbitrary and are used for purposes of describing the embodiments only. The mobile communication device processor can assign any indicator, name, or other designation to distinguish between subscriptions associated with one or more SIMs and to distinguish between carriers used for subscription. Further, the embodiment method applies the same content regardless of which carrier channel or receive chain is used for tune away from a high speed (eg, LTE) network. Further, although high speed networks are referred to as LTE networks, various embodiments may be implemented for use in any high speed network in various high speed networks (eg, HSPA+, DC-HSPA, EV-DO, etc.) Receive data.

Various embodiments may be implemented in various communication systems, such as the example communication system 100 shown in FIG. 1A. Communication system 100 can include one or more mobile communication devices 102, a telephone network 104, and a network server 106 coupled to telephone network 104 and Internet 108. In some embodiments, the web server 106 can be implemented as a server within the network infrastructure of the telephony network 104.

A typical telephone network 104 can include a plurality of cellular base stations 110 coupled to a network operations center 112 that operate, such as via a telephone landline (e.g., a plain old telephone service (POTS) network, not The Internet 108 is connected to voice and data dialing between the mobile communication device 102 (e.g., tablet, laptop, cellular, etc.) and other network destinations. The telephone network 104 can also include one or more servers 116 coupled to the network operations center 112 or located within the network operations center 112 to provide connections to the Internet 108 and/or the web server 106. The mobile communication device 102 and the telephone network 104 can be completed via a two-way wireless communication link 114 such as GSM, UMTS, EDGE, 4G, 3G, CDMA, TD-SCDMA, TDMA, 1xRTT, LTE, and/or other communication technologies. Communication.

In summary, any number of wireless networks can be deployed in a given geographic area. Each wireless network can support one or more radio access technologies that can operate on one or more frequencies (also referred to as carriers, channels, channels, etc.) in a given geographic area. ) to avoid interference between wireless networks of different radio access technologies.

When powered up, the mobile communication device 102 can search for a wireless network from which the mobile communication device 102 can receive communication services. In various embodiments, the mobile communication device 102 can be configured to prefer an LTE network (when available) via a prioritized list that defines the highest point in which the LTE frequency is occupied. The mobile communication device 102 can perform a registration procedure on one of the identified networks (referred to as service networks), and the mobile communication device 102 can operate in connected mode to actively communicate with the service network. Alternatively, if the active communication is not required by the mobile communication device 102, the mobile communication device 102 can operate in an idle mode and reside on the service network. In the idle mode, the mobile communication device 102 can identify that the mobile communication device 102 can find therein as in the LTE standard (eg, the name is "LTE; Evolved Universal Terrestrial Radio Access (E-UTRA); User Equipment (UE) procedures in idle 3GPP TS 36.304 version 8.2.0 of mode 3) Release 8) All radio access technologies for "appropriate" cells in a normal scenario or "acceptable" cells in an emergency scenario.

The mobile communication device 102 can reside in cells belonging to the RAT having the highest priority among all identified RATs. The mobile communication device 102 can remain resident until the control channel no longer meets the threshold signal strength or the cells of the higher priority RAT reach the threshold signal strength. Such cell selection/reselection operations of the mobile communication device 102 in idle mode are also described in 3GPP TS 36.304 Release 8.2.0 Release 8.

FIG. 1B illustrates a network architecture 150 that includes an Evolutionary Packet System (EPS). Referring to Figures 1A through 1B, in network architecture 150, mobile communication device 102 can be coupled to an LTE access network (e.g., an evolved UMTS Terrestrial Radio Access Network (E-UTRAN) 152). In various embodiments, E-UTRAN 152 may be an LTE base station (ie, evolved Node B) that may be connected to each other via an X2 interface (eg, backhaul) (not shown) (eg, in FIG. 1A) 110) The network.

In various embodiments, each evolved Node B 110 can provide an access point to an LTE core (eg, an evolved packet core) to a mobile communication device. For example, the EPS in network architecture 150 may also include an evolved packet core (EPC) 154 to which E-UTRAN 152 may be connected. In various embodiments, EPC 154 may include at least one Mobility Management Entity (MME) 162, a Serving Gateway (SGW) 160, and a Packet Data Network (PDN) Gateway (PGW) 163.

In various embodiments, E-UTRAN 152 can be connected to EPC 154 via SGW 160 and MME 162 that are connected to EPC 154. The MME 162, which may also be logically connected to the SGW 160, may handle the security of tracking and paging to the mobile communication device 102 and E-UTRAN access on the EPC 154. The MME 162 can be linked to a Home Subscriber Server (HSS) 156, which can support a database containing user subscriptions, profiles, and authentication information. Further, MME 162 provides bearer and connection management for user Internet Protocol (IP) packets transmitted via SGW 160. In various embodiments, SGW 160 can be coupled to PGW 163, which can provide IP address assignments to mobile communication device 102 as well as other functions. The PGW 163 can be connected to a service provider's IP service 158, which can include, for example, the Internet, an intranet, an Internet Protocol Multimedia Subsystem (IMS), a Packet Switched Streaming Service (PSS), and the like.

Network architecture 150 may also include circuit switched (CS) and packet switched (PS) networks. In some embodiments, the mobile communication device 102 can be connected to the CS via a connection to a legacy 2G/3G access network 164 (which can be one or more UTRAN, GSM EDGE Radio Access Network (GERAN), etc.) And / or PS packet switching network. In various embodiments, the 2G/3G access network 164 can include a base station (e.g., a base station transceiver (BTS), a Node B, a radio base station (RBS), etc.) (e.g., 110) and at least one base station. Controller (BSC) or wireless network controller (RNC) network. In various embodiments, the 2G/3G access network 164 can be implemented via a mobile switching center (MSC) and associated accessor location register (VLR) (which can be implemented as MSC/VLR 166) The interface (or the gateway to it) is connected to the circuit switched network. In the CS network, the MSC/VLR 166 can be connected to the CS core 168, which can be connected to an external network (e.g., the Public Switched Telephone Network (PSTN)) via a gateway MSC (GMSC) 170.

In various embodiments, the 2G/3G access network 164 can be connected to the PS network via an interface (or gateway to it) that can be connected to the Serving GPRS Support Node (SGSN) 172 of the PS core 174. In the PS network, the PS core 174 can be connected to an external PS network (e.g., the Internet and service provider's IP service 158) via a gateway General Packet Radio Service (GPRS) Support Node (GGSN) 176.

A variety of techniques can be used by LTE network service providers to enable voice dialing to mobile communication device 102 when resident in an LTE network (e.g., EPS). An LTE network (eg, EPS) can coexist in a hybrid network with CS and PS networks, where MME 162 provides services for mobile communication device 102 to utilize PS data services via LTE network, and SGSN 172 is mobile communication device 102. Services are provided to utilize PS data services in non-LTE regions, and MSC/VLR 166 provides services to mobile communication devices 102 to utilize voice services. In various embodiments, the mobile communication device 102 may be capable of using a single RF resource by implementing Circuit Switched Feedback (CSFB) for switching between accessing the E-UTRAN 152 and the legacy 2G/3G access network 164. Both voice and LTE data services.

The hybrid network can be enabled to facilitate CSFB via the interface between the MME 162 and the MSC/VLR 166. The interface enables the mobile communication device 102 to utilize a single RF resource as being registered with both the CS and the PS when resident in the LTE network, which enables delivery of CS paging via the E-UTRAN 152. The CS pager can initiate a CSFB program that can cause the mobile communication device to transfer to the CS network and use the CS to call the setup program.

In various embodiments, the modulation and multiplex access schemes may be used by a high speed access network (e.g., E-UTRAN 152) and may vary depending on the particular telecommunications standard being deployed. For example, in LTE applications, Orthogonal Frequency Division Multiplexing (OFDM) can be used on the downlink, while Single-Carrier Frequency Division Multiple Access (SC-FDMA) can be used on the uplink to support frequency division duals. Both work (FDD) and time division duplex (TDD). Those of ordinary skill in the art to which the present invention pertains will recognize that while various embodiments herein may be described in relation to LTE, such embodiments may be extended to other telecommunication standards using other modulation and multiplex access techniques. As an example, various embodiments may be extended EV-DO and/or Ultra Mobile Broadband (UMB), each of the EV-DO and Super Mobile Broadband being developed by the 3rd Generation Partnership Project 2 (3GPP2) as CDMA2000 An empty intermediary standard for providing broadband Internet access to mobile communications devices as part of the family. Various embodiments may also be extended to Universal Terrestrial Radio Access (UTRA), GSM, Evolutionary UTRA (E-UTRA), UMB, Institute of Electrical and Electronics Engineers (IEEE) 802.11 (Wi-Fi), IEEE 802.16 using WCDMA. (WiMAX), IEEE 802.20, and/or flash OFDM using OFDM access (OFDMA). The actual wireless communication standards and multiplex access techniques used depend on the specific application and the overall design constraints imposed on the system.

In some embodiments, an access network entity (eg, evolved Node B) may have multiple antennas supporting multiple input multiple output (MIMO) technology, thereby enabling evolved Node B to utilize spatial domains to support multiple spaces. Work, beamforming and/or transmit diversity. Spatial multiplexing can be used to simultaneously send different streams of data on the same frequency. In some cases, data streams can be sent to a single mobile device to increase the data rate, while in other cases, data streams can be sent to multiple mobile devices to increase overall system capacity. In particular, the evolved Node B may spatially precode each data stream and transmit each spatially precoded data stream over a plurality of transmit antennas on the downlink. The spatially precoded data stream can arrive at one or more mobile communication devices with different spatial signatures to enable recovery of one or more data streams to the device or antenna.

On the uplink, each mobile communication device can transmit a spatially precoded data stream, which enables the evolved Node B to identify the source of each received data stream. In some embodiments, beamforming can be used by the evolved Node B to focus the transmitted energy in one or more directions when channel conditions are unfavorable. In various embodiments, beamforming may involve spatially precoding the data for transmission via multiple antennas. In some embodiments, to achieve good coverage at the cell edge, a single stream beamforming transmission can be used in conjunction with transmit diversity (eg, transmitting the stream to the same source via multiple antennas).

Various embodiments may be implemented in an LTE-Advanced wireless network that has been deployed or may be deployed in the future. LTE-Advanced communication typically uses the spectrum (5 component carriers) in the bandwidth up to 20 MHz allocated in carrier aggregation up to a total of 100 MHz for transmission in each direction. Such LTE-Advanced systems can utilize one or more types of carrier aggregation in two types of carrier aggregation (discontinuous and continuous). Non-continuous carrier aggregation involves aggregating available component carriers (inter-band or in-band) separated in the spectrum, while continuous carrier aggregation involves multiple available component carriers adjacent to each other. Both non-contiguous and continuous carrier aggregation can aggregate multiple LTE/component carriers to serve mobile communication devices using the LTE-Advanced protocol.

2 is a functional block diagram of an example multi-SIM communication device 200 suitable for implementing various embodiments. Referring to FIGS. 1A-2, the multi-SIM communication device 200 can be similar to one or more of the mobile communication devices 102. The multi-SIM communication device 200 can include a SIM interface 202 that can represent one or two SIM interfaces. The SIM interface 202 can receive the first identity module SIM 204 associated with the first subscription. In some embodiments, the multi-SIM communication device 200 can also include a second SIM interface that is part of the SIM interface 202, which can receive the second identity module SIM 204 associated with the second subscription.

In various embodiments, the SIM may be a Universal Integrated Circuit Card (UICC) configured with a SIM and/or a universal SIM application that implements access to a GSM and/or UMTS network. UICC can also provide memory for phonebooks and other applications. Alternatively, in a CDMA network, the SIM can be a UICC Removable User Identity Module (R-UIM) or a CDMA User Identity Module (CSIM) on the card.

Each SIM 204 can have a central processing unit (CPU), read only memory (ROM), random access memory (RAM), electronic erasable programmable read only memory (EEPROM), and input/output (I). /O) circuit. The SIM 204 used in various embodiments may include user account information, an IMSI, a SIM Application Toolkit (SAT) command set, and a memory space for a phone book contact. The SIM 204 may further store a home identifier (eg, a system identification number (SID) / network identification number (NID) pair, a home public land mobile number (HPLMN) code, etc.) to indicate the SIM network service provider provider. The integrated circuit card identity (ICCID) SIM serial number can be printed on the SIM card for identification.

The multi-SIM communication device 200 can include at least one controller (e.g., general purpose processor 206) that can be coupled to an encoder/decoder (transcoder) 208. Transcoder 208 can then be coupled to speaker 210 and microphone 212. The general purpose processor 206 can also be coupled to at least one memory 214. Memory 214 can be a non-transitory tangible computer readable storage medium that stores processor-executable instructions. For example, the instructions can include routing communication data associated with the first or second subscription via a corresponding baseband RF resource chain. The memory 214 can store an operating system (OS) as well as user application software and executable instructions. Memory 214 may also store product quality measurements for various carriers supported by SIM 204 and RF resources 218.

General purpose processor 206 and memory 214 may each be coupled to at least one baseband data processor 216. Each of the multiple SIM communication devices 200, the SIM 204, may be associated with a baseband RF resource chain including at least one receive block (e.g., RX1, RX2) of the baseband data machine 216 and the RF resource 218. In various embodiments, the baseband RF resource chain may include physical or logically separated baseband data processor (eg, BB1, BB2).

The RF resources 218 can be coupled to the antennas 220a, 220b and can perform transmit/receive functions for wireless services associated with each SIM 204 of the multi-SIM communication device 200. In some embodiments, RF resources 218 can be coupled to wireless antennas 220a, 220b for transmitting and receiving RF signals for a plurality of SIMs 204, thereby enabling multi-SIM communication device 200 to perform Simultaneous communication of separate networks and/or services associated with SIM 204. The RF resources 218 may include separate receiving and transmitting functions, or may include transceivers that combine transmitter and receiver functions. In various embodiments, the transmitting function of resource 218 may be implemented by at least one transmit block (TX), which may represent circuitry associated with one or more radio access technologies/SIMs.

In a particular embodiment, general purpose processor 206, memory 214, baseband data processor 216, and RF resources 218 may be included in system on chip device 222. One or more SIMs 204 and corresponding interfaces 202 may be external to system-on-chip device 222. Further, various input and output devices can be coupled to components of system-on-chip device 222, such as an interface or controller. Example user input components suitable for use in the multi-SIM communication device 200 can include, but are not limited to, a keypad 224 and a touchscreen display 226.

In some embodiments, keypad 224, touchscreen display 226, microphone 212, or a combination thereof, can perform the function of receiving a request to initiate an outgoing call. For example, touch screen display 226 can receive a selection of contacts from a contact list or receive a phone number. In another example, any or both of touch screen display 226 and microphone 212 can perform the function of receiving a request to initiate an outgoing call. For example, touch screen display 226 can receive a selection of contacts from a contact list or receive a phone number. As another example, the request to initiate an outgoing call may be in the form of a voice command received via the microphone 212. An interface may be provided between the various software modules and functions in the multi-SIM communication device 200 to enable communication between them as known in the art to which the present invention pertains.

The baseband data processor of the mobile communication device can be configured to execute software including at least one protocol stack associated with the at least one SIM. The SIM and associated protocol stacks can be configured to support multiple communication services that enable different user needs. Further, a particular SIM may be provided with information to perform different signal delivery procedures to access the domains of the core network associated with these services and to dispose of their data.

In various embodiments, RF resource 218 can be configured with receiver and transmitter circuitry for supporting multiple radio access technologies/wireless networks operating in accordance with different wireless communication protocols. Such circuitry may allow RF resources 218 to process signals associated with different communication standards and may include or provide differences from amplifiers, digital analog converters, analog to digital converters, screening programs, voltage controlled oscillators (VCOs), and the like. The connection of the collection. In some embodiments, the first receiving block (RX1) and the transmitting block (TX) are operable to be used to transmit and receive RF signals via a first antenna in accordance with a high speed data network (eg, an LTE network) . That is, various embodiments may include a first receive chain and a transmit chain each configured to communicate primarily with an LTE network. Further, the second receiving block (RX2) may be coupled to the second antenna (ie, form a second receiving chain) and may be configured to operate in coordination with the transmitting block and the first receiving block to provide dual receiving capability (eg, as used in MIMO reception). In various embodiments, the first and second receiving blocks can be configured to utilize the same or different various radio receiver units. For example, for MIMO communication, the first and second receive blocks can use the first and second antennas, respectively, to tune to the same LTE carrier frequency and receive signals on the same LTE carrier frequency using a single VCO.

In some embodiments, the first and second receiving blocks can use the first and second antennas, respectively, to tune to different carrier frequencies and receive signals on different carrier frequencies using separate VCOs. In some embodiments, different carrier frequencies may be LTE carrier frequencies in the same or different frequency bands, thus providing support for LTE wireless networks that use carrier aggregation to combine information transmitted on two or more carrier frequencies . In some embodiments in which two different carrier frequencies are received in a carrier aggregation mode, the first and second antennas may each be shared between the first and second received blocks. In this way, each antenna can support two receive chains (i.e., one receive chain per carrier frequency), thus supporting antenna diversity on both carrier frequencies.

In other embodiments, the different carrier frequencies may be channels in another RAT (eg, using CDMA 2000 1x, UMTS, TD-SCDMA, 1xRTT, GSM). In this way, additional receivers can implement downlink connections for legacy networks while maintaining uplink and downlink communications over the LTE network. However, in the case of having only one receive chain assigned for LTE communication, MIMO communication is disabled for downlink communication over the LTE network. Thus, the mobile communication device can provide a rank indicator (RI) value in the channel status report or provide another signal delivery control message to the LTE wireless network, the other signal delivery control message indicating a higher modulation and coding scheme for decoding. (MCS) Downlink data is powerless.

3 is a functional block diagram of an example communication subsystem 300 in a mobile communication device (such as the multi-SIM communication device 200 of FIG. 2) suitable for implementing various embodiments. Referring to FIGS. 1A through 3, communication subsystem 300 can include a first SIM 302 and a second SIM 304. The first SIM 302 may be associated with a first subscription and a first RAT (e.g., LTE) capable of carrier aggregation and MIMO communication. The second SIM 304 can be associated with a second subscription and a second legacy RAT (eg, GSM, CDMA, or WCDMA). The first SIM 302 and the second SIM 304 can be in communication with the data processor 306. The modem processor 306 can be in communication with the first transceiver 308 and the second transceiver 310. First transceiver 308 and second transceiver 310 can be in communication with RF front end 312, which can include one or more antennas for communicating with a mobile telephone network.

The modem processor 306, the transceivers 308, 310, and the RF front end 312 can implement a plurality of uplink and downlink component carriers for subscriptions associated with the SIMs 302, 304. For example, data processor 306, first transceiver 308, and RF front end 312 can support PCC 314 for first SIM 302. The PCC 314 may include a primary uplink carrier Tx1, a primary receive chain PRx1, and a diversity receive chain DRx1 that are active when MIMO communication is implemented on the PCC 314. The modem processor 306, the first transceiver 308, and the RF front end 312 can also support the first SCC 316 for the first SIM 302. The first SCC 316 can operate as a downlink carrier having a primary receive chain PRx2 and a diversity receive chain DRx2, the diversity receive chain DRx2 being active when MIMO communication is implemented on the first SCC 316. The modem processor 306, the second transceiver 310, and the RF front end 312 can support the second SCC 318 for the first SIM 302. The second SCC 318 can operate as a downlink carrier having a primary receive chain PRx3 and a diversity receive chain DRx3, and the diversity receive chain DRx3 is active when MIMO communication is implemented on the second SCC 318. In general, PCC 314 and SCC 316, 318 form a first subscription 320 associated with first SIM 302. In addition to the downlink carrier, the first SCC 316 and the second SCC 318 may also have an uplink carrier (not shown in the communication subsystem 300). The first subscription 320 may also have additional SCCs not shown in the communication subsystem 300, and each SCC may include a downlink carrier and/or an uplink carrier.

The modem processor 306, the second transceiver 310, and the RF front end 312 can also support the second subscription 322 associated with the second SIM 304. The second subscription 322 can include an uplink carrier TX Sub2. Resources for downlink communications by the second subscription 322 may be shared with one of the SCCs 316, 318 of the first subscription 320. For example, when the first subscription 320 is active, the tune away from the second subscription 322 is occasionally directed so that the second subscription 322 performs an idle mode operation. The modem processor 306 can give the RF resources assigned to the first SCC 316 to the second subscription 322 during the tune away from the second subscription 322. Alternatively, the data machine processor 306 can give the RF resources assigned to the second SCC 318 to the second subscription 322 during the tune away. The PCC 314 of the first subscription 320 may be active even during the tune away from the first subscription 320 to the second subscription 322. The first subscription 320 may have additional downlink or uplink component carriers that may be used in the tune away to the second subscription 322, not shown in FIG.

FIG. 4 illustrates a timing diagram 400 of tune away performed on a mobile communication device. The mobile communication device can include a first subscription capable of carrier aggregation, such as an LTE subscription. The first subscription 420 can include a PCC uplink carrier 402, a PCC downlink carrier 404, a first SCC downlink carrier 406, and a second SCC downlink carrier 408. The first subscription 420 may have additional uplink or downlink carriers that are not shown in the timing diagram 400. The second subscription 410 can be a traditional subscription such as a GSM, CDMA or WCDMA subscription.

When the first subscription 420 is active and the second subscription 410 is idle, each carrier of the first subscription 420 may be transmitting or receiving material. In particular, the first SCC 406 may be receiving data at a particular data throughput level 416. The second SCC 408 may initially receive data at a particular data throughput level 414a that is lower than the data throughput level 416 of the first SCC 406.

The mobile communication device can schedule the transfer 412a from the first subscription 420 to the second subscription 410. During the tune away 412a, the mobile communication device selects one of the SCCs 406, 408 of the first subscription 420 for tune away from the second subscription 410. In conventional systems, this selection does not conventionally take into account any quality measurements of SCCs 406 and 408, such as data throughput. Alternatively, the selection can be made using various preset rules. For example, as a default rule, the mobile communication device can select the second SCC 408 to tune away 412a (eg, if the second SCC 408 and the second subscription 410 share the transceiver). During the divergence 412a, the first SCC 406 is still active and is receiving data at the data throughput level 416. The tune away 412a may not significantly affect the overall data delivery amount of the first subscription 420 because the now inactive second SCC 408 has a lower data throughput level 414a than the data delivery volume level 416 of the first SCC 406.

After the end of the divergence 412a, the data throughput of the second SCC 408 can be increased to a new data delivery level 414b that is now higher than the data delivery level 416 of the first SCC 406. At a later time, the mobile communication device can schedule another tune away 412b from the first subscription 420 to the second subscription 410. The mobile communication device can preset the second SCC 408 to perform the handover 412b. However, during tune away 412b, the overall data throughput of the first subscription 420 can be significantly affected because the now inactive second SCC 408 has a higher data rate than the first SCC 406 data throughput level 416. Delivery level 414b. The result is an inefficient method for selecting component carriers for carrier aggregation subscriptions used in tune away from another subscription. For example, the first SCC 406 instead of the second SCC 408 can be used to tune away 412b to maximize the overall amount of data delivery for the first subscription 420.

Various embodiments address this inefficiency by selecting component carriers used in tune away based on various carrier link quality measurements. The component carriers with the lowest quality measurement results during the scheduled tune away are selected for tune away to minimize the impact on the active subscription during the tune away. The quality measurement result used for comparison may be the historical data delivery amount of each component carrier before the scheduled tune away, or may be the predicted data delivery amount of each component carrier during the scheduled tune away period. .

5A-5D illustrate block diagrams of various configurations of subscribed component carriers in a mobile communication device in accordance with various embodiments. Referring to Figures 1A-3 and 5A through 5D, a subscription such as the first subscription 320 (or 420 in Figure 4) may be capable of carrier aggregation. One or more of the subscribed component carriers may be given to another subscription during the tune away. The subscribed configuration 500 (Fig. 5A) may include a PCC having an uplink component carrier, a downlink component carrier, and four SCCs each having a downlink and uplink component carrier numbered 1 through 4. In configuration 500, all uplink component carriers in the uplink component carrier are associated with a PCC downlink component carrier. The communication grant for all uplink component carriers in the uplink component carrier may be included in the Physical Downlink Control Channel (PDCCH) of the PCC.

Configuration 500 can implement cross-carrier scheduling where resources are scheduled on different carriers when grants are received. This allows the mobile communication device to balance the load across the available component carriers. If configuration 500 does not implement scheduling across carriers, the data is only sent on the carrier to which the data is assigned. In configuration 500, the transmitter and receiver antennas can be accompanied (i.e., the transmitter and antenna are utilized by the same SCC). If the transmitter and receiver are accompanied, both the uplink and downlink component carriers of the same SCC can be given to another subscription during the tune away. For accompanying RF resources, the mobile communication device can determine that the amount of uplink data transmission on the mobile communication device is also that the amount of downlink data transmission is heavier, and by looking at all downlink components in the downlink component carrier. The product quality measurement result of the carrier (if the downlink data transmission amount is heavier) or the quality measurement result of all the uplink component carriers in the uplink component carrier (if the uplink data transmission amount is heavier) to select Give SCCs to other subscriptions. If the transmitter and receiver are not attached, the downlink component carrier of one SCC may be given another subscription during the handover, and if necessary, the uplink component carrier of the other SCC may be given another A subscription. Therefore, the mobile communication device can separately make downlink and uplink selections.

In configuration 510, where cross-carrier scheduling is enabled, each uplink component carrier is associated with a separate downlink component carrier. The PCC PDCCH can be used to direct cross-carrier scheduling. In this case, the uplink and downlink grants may be included in the PCC PDCCH. The transmitter and receiver antennas may or may not be accompanied. If the transmitter and antenna are accompanied, both the uplink and downlink component carriers of the same SCC can be given to another subscription during the tune away. The mobile communication device can determine whether the amount of uplink data transmission on the mobile communication device is heavy or the amount of downlink data transmission is heavy, and then by looking at the quality measurement result of all downlink component carriers in the downlink component carrier (if The downlink data transmission is heavier or the quality measurement result of all uplink component carriers (if the uplink data transmission amount is heavier) to select the SCC to be given to another subscription. If the transmitter and receiver are not attached, the downlink component carrier of one SCC may be given another subscription during the handover, and if necessary, the uplink component carrier of another SCC may be given to another subscription.

In configuration 520, certain downlink component carriers (eg, downlink carriers of PCC and SCC2) may be associated with a particular uplink component carrier, while other downlink component carriers (eg, SCC1, SCC3) And the downlink carrier of SCC4) may not be associated with any uplink component carrier. In this case, the mobile communication device can select from only the unassociated downlink component carriers to tune away from another subscription such that any uplink in the uplink component carrier is not affected during the handover. Road component carrier. For example, the mobile communication device can determine the quality measurement results of the downlink carriers of SCC1, SCC3, and SCC4, and select the carrier with the lowest quality quality measurement result to be used in the handover. If only one downlink component carrier is not associated, the carrier may always be selected for tune away.

In configuration 530, where cross-carrier scheduling is not enabled, each uplink component carrier is associated with a separate downlink component carrier. In this case, uplink and downlink grants may be included in the PDCCH of each downlink component carrier. In configuration 530, both the downlink and uplink component carriers of the SCC may be given to another subscription during the tune away. The mobile communication device can determine whether the uplink data transmission amount or the downlink data transmission amount on the mobile communication device is heavy, and by checking the quality measurement result of all the downlink component carriers in the downlink component carrier (if the downlink The link data transmission is heavier or the quality measurement result of all uplink component carriers in the uplink component carrier (if the uplink data transmission amount is heavy) to select the SCC to be given to another subscription.

6 illustrates a table 600 listing a plurality of measurables of quality measurements that may be considered or used to calculate a downlink component carrier during a scheduled handover from a component carrier to another subscription. Measured or determinable value. Referring to FIGS. 1A-3 and 5A-6, the quantifiable or determinable value in table 600 may indicate a historical or predicted amount of data delivery for a downlink component carrier during the scheduled tune away. Table 600 may include a measurable or determinable value of a subscribed first SCC downlink carrier 602 and a second SCC downlink carrier 604 in a mobile communication device (e.g., mobile communication device 200) having carrier aggregation. The mobile communication device may have additional downlink or uplink carriers not shown in table 600. The data shown in table 600 can be stored in a memory (e.g., memory 214) on the mobile communication device. The material shown in table 600 can take any form and be stored at various locations in the memory and is not limited to the form of a table.

An example of a measurable or determinable value that can be used to calculate the quality metric results for the downlink carriers 602, 604 is a channel quality indicator (CQI) value 606. The CQI value 606 can be expressed as CQI _i (k), where i represents the ith component carrier (eg, for the first downlink carrier 602, i = 1, and for the second downlink carrier 604, i = 2), and k denotes the sub-frame that occurred during the transfer. The CQI value 606 may be a number indicating the quality of the component carrier ranging from zero to fifteen (0 to 15), where a value of zero indicates the lowest level of quality and a value of 15 indicates the highest level of quality. The CQI value 606 can be calculated by the mobile communication device periodically or in response to a particular event and can be reported to the network. The CQI value 606 may indicate the historical data delivery amount of the component carrier before the subframe k.

Another example of a measurable or determinable value that can be used to calculate the quality measurements of the downlink carriers 602, 604 is the downlink transport block (TB) size value 608. The TB size value 608 can be expressed as TB _i (k), where i represents the ith component carrier and k represents the subframe in which the tune away occurs. The TB size value indicates the data size of the payload allocated in the physical layer of the mobile communication device. The mobile communication device can generally store an overall transient TB size value TB(k) indicating that the cyclic redundancy check (CRC) is scheduled in the subframe k via the decoding result. Transient transport block size. The TB size value 608 TB _i (k) of the particular component carrier may be a filtered or averaged metric derived from the overall transient TB size value TB(k), which may be determined as: Where α is a filter coefficient indicating the weight of the overall transient TB size value TB(k) when calculating TB _i (k). The range of α can be between zero and one, and the value can be selected based on a number of factors such as channel conditions and mobility. The smaller value of α indicates a smaller contribution from the overall transient TB size value TB(k), and vice versa. The TB size value 608 may indicate the historical data throughput of the component carrier prior to the subframe k .

The mobile communication device may utilize the CQI value 606 and/or the TB size value 608 as a quality measurement result indicating the historical data delivery amount of the downlink component carrier before the scheduled rounding off at the subframe k. For example, mobile communication device may tune away for a subframe in which the occurrence of k values of the first TB size downlink carrier 602 TB TB size value of ₁ (k) and a second downlink carrier 604 TB ₂ ( k) Compare. A higher TB size value indicates a higher amount of data delivery and thus indicates a higher quality measurement result. Any component carrier with the lowest TB size value can be selected for use in the tune away from another subscription.

If the TB size values 608 of the two component carriers are equal (ie, TB ₁ (k) = TB ₂ (k)), the mobile communication device can set the first downlink for the subframe k in which the handover occurs. The CQI value CQI ₁ (k) of the road carrier 602 is compared with the CQI value CQI ₂ (k) of the second downlink carrier 604. A higher CQI value indicates a higher amount of data delivery and thus indicates a higher quality measurement result. Any component carrier with the lowest CQI value can be selected for use in the tune away from another subscription.

Another example of a measurable or determinable value that can be used to calculate the quality measurements of the downlink carriers 602, 604 is a downlink resource block (RB) size value 610. RB size value RB 610 may be expressed as _i (k), where i denotes the i th component carrier, and k represents transferred subframe during which occurred. The RB size value 610 may represent the number of resource blocks (resources represented by the time-frequency grid) allocated by the network to the mobile communication device. The mobile communication device can generally store the overall transient RB size value RB(k), which indicates that the cyclic redundancy check (CRC) is scheduled in the subframe k via the decoding result. Transient resource block size. The RB size value 610 RB _i (k) of a particular component carrier may be a filtered or averaged metric derived from the overall transient RB size value RB(k), which may be determined as: Where α is a filter coefficient indicating the weight of the overall transient RB size value RB(k) when calculating RB _i (k). The range of α can be between zero and one, and the value can be selected based on a number of factors such as channel conditions and mobility. The smaller value of α indicates a smaller contribution from the overall transient RB size value RB(k), and vice versa. The RB size value 610 may indicate the predicted data throughput of the component carriers during the tune away scheduled in subframe k .

Another example of a measurable or determinable value that can be used to calculate the quality measurements of the downlink carriers 602, 604 is the block error rate (BLER) 612. BLER 612 may be expressed as a BLER _i representing the block error rate of the i-th component carrier. BLER 612 can indicate how successful the data transfer is at the transport block level. BLER 612 may be defined as the ratio of the number of received error transport blocks to the total number of transmitted transport blocks, and may be determined by the mobile communication device using test transport blocks transmitted by the network. The BLER 612 may indicate the predicted amount of data conveyance of the component carriers during the tune away scheduled in the subframe k.

Another example of a measurable or determinable value that can be used to calculate the quality measurements of the downlink carriers 602, 604 is the packet error rate (PER) 614. PER 614 may be expressed as PER _i representing the packet error rate of the i- th component carrier. PER 614 can indicate how successful the data transfer is at the packet level. PER 614 may be defined as the ratio of the number of received error packets to the total number of packets sent, and may be determined by the mobile communication device using test packets sent from the network. The PER 614 may indicate the predicted amount of data conveyance of the component carriers during the tune away scheduled in the subframe k .

Another example of a measurable or determinable value that can be used to calculate the quality measurements of the downlink carriers 602, 604 is a spectral efficiency (SE) value 616. The SE value 616 can be expressed as SE _i (k), where i represents the ith component carrier and k represents the subframe in which the tune away occurs. The SE value 616 can represent the rate of information that can be transmitted over a given bandwidth in a particular communication system, and can be a measure of how efficiently the spectrum is utilized by the physical layer or media access control (MAC) layer protocol. The SE value 616 can be measured in bits per second per hertz. The SE value 616 may be associated with the CQI value 606 such that each CQI value has an associated SE value. The SE value 616 may indicate the predicted data throughput of the component carrier during the tune away scheduled in subframe k .

The mobile communication device can utilize the RB size value 610, the SE value 616, and the BLER 612 or PER 614 to calculate the quality of the predicted data throughput indicative of the downlink component carrier during the tune away scheduled during subframe k. Test results. For example, the mobile communication device can calculate the predicted data throughput of the downlink component carrier as follows: Where T _i (k) is the predicted data transmission amount of the i- th component carrier during the tune-out period scheduled in the subframe k , and SE _i (k) is the i- th component carrier at the subframe k The spectral efficiency, RB _i (k) is the resource block size of the ith component carrier at subframe k , and ER _i is the error rate of the ith component carrier. The ER _i value can be BLER 612 or PER 614. Any one of the downlink component carriers with the lowest T _i (k) can be selected for use in the handover to another subscription.

Therefore, the mobile communication device can use the CQI value 606 and/or the TB size value 608 to determine the historical data delivery amount of the downlink component carrier, or can use the RB value 610, the SE value 616, and the BLER 612 or PER 614 to determine the downlink. The predicted data throughput of the road component carrier. These data throughput calculations can be used by the mobile communication device to select the downlink component carrier to use in the handover to another subscription.

7 illustrates a table 700 listing a plurality of possible quality measurements that may be considered or used to calculate an uplink component carrier during a scheduled handover from one component carrier to another. Measured or determinable value. Referring to Figures 1A-3 and 5A-7, the values in the table 700 may indicate historical or predicted amount of data delivery for the uplink component carrier during the scheduled tune away. Table 700 can include values for the subscribed first SCC uplink carrier 702 and second SCC uplink carrier 704 in a mobile communication device (e.g., mobile communication device 200) having carrier aggregation. The mobile communication device may have additional downlink or uplink carriers not shown in table 700. The data shown in table 700 can be stored in a memory (e.g., memory 214) on the mobile communication device. The material shown in table 700 can take any form and be stored at various locations in the memory and is not limited to the form of a table.

An example of a measurable or determinable value that can be used to calculate the quality measurements of the uplink carriers 702, 704 is a modulation and coding scheme (MCS) value 706. The MCS value 706 may be expressed as MCS _i (k), where i represents the ith component carrier (eg, i = 1 for the first uplink carrier 702; and i = 2 for the second uplink carrier 704) ), and k means to tune away the subframe in which it occurred. The MCS value 706 may be a digit corresponding to various modulation and coding schemes assigned by the network to the component carrier. Different MCSs may have different associated data throughputs, and higher MCS values may indicate higher data throughput allowed by the protocol. The MCS value 706 can be obtained from the network. The MCS value 706 may indicate the historical data throughput of the uplink component carrier prior to subframe k .

Another example of a measurable or determinable value that can be used to calculate the quality measurements of the uplink carriers 702, 704 is an uplink transport block (TB) size value 708. The TB size value 708 can be expressed as TB _i (k), where i represents the ith component carrier and k represents the subframe in which the tune away occurs. Like the TB value 608 of the downlink carrier, the TB size value 708 represents the data size of the payload allocated in the physical layer of the mobile communication device. The mobile communication device can generally store an overall transient TB size value TB(k) indicating that the cyclic redundancy check (CRC) is scheduled in the subframe k via the decoding result. Transient transport block size. The TB size value 708 TB _i (k) of the specific component carrier may be the overall transient TB size value from the ith component carrier. A filtered or averaged metric that is remitted, which can be determined as: Where α is the overall transient TB size value The filter coefficient of the weight when calculating TB _i (k). The range of α can be between zero and one, and the value can be selected based on a number of factors such as channel conditions and mobility. The smaller value of α indicates the value from the overall transient TB size Smaller contribution, and vice versa. The TB size value 708 may indicate the historical data throughput of the component carrier prior to the subframe k.

The mobile communication device may utilize the MCS value 706 and/or the TB size value 708 as a quality measurement result indicating the historical data delivery amount of the uplink component carrier prior to the tune away scheduled at the subframe k. For example, mobile communication device may tune away for k subframes during which occurs the first uplink carrier 702 TB size value TB TB size value ₁ (k) and the second uplink carrier ₂ 704 TB ( k) Compare. A higher TB size value indicates a higher amount of data delivery and thus indicates a higher quality measurement result. Any component carrier with the lowest TB size value can be selected for use in the tune away from another subscription.

If the TB size values 708 of the two component carriers are equal (ie, TB ₁ (k) = TB ₂ (k)), the mobile communication device may set the first uplink for the subframe k during which the handover occurs. MCS MCS value channel carrier 702 MCS value ₁ (k) and the second uplink carrier 704 MCS ₂ (k) are compared. A higher MCS value indicates a higher amount of data delivery and thus indicates a higher quality measurement result. Any component carrier with the lowest MCS value can be selected for use in the tune away from another subscription.

Another example of a measurable or determinable value that can be used to calculate the quality measurements of the uplink carriers 702, 704 is an uplink transient transport block (TB) size value 710. The transient TB size value 710 can be expressed as instTB _i (k), where i represents the ith component carrier and k represents the subframe in which the tune away occurs. Unlike the TB size value 708, the transient TB size value 710 is based on the transitive TB size allocated by the network to the uplink component carrier. The transient TB size value 710 may indicate the predicted data throughput of the component carrier prior to subframe k .

Another example of a measurable or determinable value that can be used to calculate the quality measurements of the uplink carriers 702, 704 is the block error rate (BLER) 712. BLER 712 may be expressed as a BLER _i representing the block error rate of the i- th component carrier. BLER 712 can indicate how successful the data transfer is at the transport block level. The BLER 712 can be defined as the ratio of the number of received error transport blocks to the total number of transmitted transport blocks and can be determined using test transport blocks sent to the network. The BLER 712 may indicate the predicted amount of data conveyance of the component carriers during the tune away scheduled in the subframe k .

Another example of a measurable or determinable value that can be used to calculate the quality measurements of the uplink carriers 702, 704 is a packet error rate (PER) 714. PER 714 may be expressed as PER _i representing the packet error rate of the i- th component carrier. PER 714 can indicate how successful the data transfer is at the packet level. PER 714 can be defined as the ratio of the number of received error packets to the total number of packets sent, and can be determined using test packets that are sent to the network. PER 714 may indicate the predicted amount of data transport for the component carriers during the tune away scheduled in subframe k .

The mobile communication device can utilize the transient TB value 710 and the BLER 712 or PER 714 to calculate a quality measurement result indicating the predicted data throughput of the uplink component carrier during the tune away scheduled during the subframe k . . For example, the mobile communication device can calculate the predicted data throughput of the uplink component carrier as follows: Where T _i (k) is the predicted data transmission amount of the i- th component carrier during the tune-out period scheduled in the subframe k , and instTB _i (k) is the i- th component at the subframe k The transitory transport block size of the carrier, and ER _i is the bit error rate of the i- th component carrier. The ER _i value can be BLER 712 or PER 714. Any one of the uplink component carriers with the lowest T _i (k) can be selected for use in the handover to another subscription.

Therefore, the mobile communication device can use the MCS value 706 and/or the TB size value 708 to determine the historical data transmission amount of the uplink component carrier, or can use the transient TB size value 710 and the BLER 712 or PER 714 to determine the uplink. The predicted data throughput of the component carrier. These data throughput calculations can be used by the mobile communication device to select the uplink component carrier used in the tune away from another subscription.

FIG. 8 illustrates a method 800 for performing tune away on a mobile communication device in accordance with various embodiments. Referring to FIGS. 1A-3 and 5A-8, the operations of method 800 may be implemented by one or more processors of mobile communication device 200, such as general purpose processor 206, baseband data. Machine processor 216 may alternatively be coupled to a separate controller (not shown) of memory 214 and baseband data processor 216.

In block 802, the device processor can schedule the tune away from the first subscription of the mobile communication device to the second subscription. The first subscription may be capable of carrier aggregation and thus may support the PCC and a plurality of additional downlink or uplink component carriers (eg, two SCCs). For example, the first subscription can be communicated via an LTE RAT capable of carrier aggregation. The second subscription can be communicated via a legacy RAT such as GSM, CDMA or WCDMA. The first and second subscriptions may share RF resources on a mobile communication device (eg, a DSDS device). The first subscription may be an active subscription, and the scheduled tune away allows the idle second subscription to perform an idle mode operation. The RF resource of one of the first subscribed component carriers may be given to the second subscription during the tune away, and the selected component carrier loses the secondary cell connection during the tune away.

In block 804, the device processor may determine a subset of the component carriers of the first subscription that are available for use during the scheduled round-off. The downlink or uplink component carriers available for use during tune away may depend on the configuration of the first subscription, eg, the described configurations 500, 510, 520, and 530. For example, a subset of component carriers that can be given a second subscription can depend on whether one or more downlink component carriers are associated with one or more uplink component carriers, whether cross-carrier scheduling is enabled, and RF Whether the transmitter and receiver of the resource are attached or not. More details regarding the selection of a subset of component carriers are described (see, for example, Figure 9).

In block 806, the device processor may determine a quality measurement result for each of the component carriers of the subset of component carriers at or near the scheduled time of the tune away. The quality measurement result may be the historical data delivery amount of each component carrier before the scheduled tune away or the predicted data delivery amount of each component carrier during the scheduled tune away period. The quality measurement results utilized may also depend on whether the device processor is comparing downlink or uplink component carriers. The historical data transmission amount of the downlink component carrier can be represented by a CQI value or a TB size value calculated for each downlink component carrier. The historical data traffic of the uplink component carrier may be represented by an MCS value or a TB size value calculated for each uplink component carrier.

The predicted data throughput of the downlink component carrier can be expressed as: Where T _i (k) is the predicted data transmission amount of the i-th component carrier during the tune-out period scheduled in the subframe k , and SE _i (k) is the i- th component carrier at the subframe k The spectral efficiency, RB _i (k) is the resource block size of the ith component carrier at subframe k , and ER _i is the error rate of the ith component carrier. The ER _i value can be a block error rate or a packet error rate.

The predicted data throughput of the uplink component carrier can be expressed as: Where T _i (k) is the predicted data transmission amount of the i- th component carrier during the tune-out period scheduled in the subframe k , and instTB _i (k) is the i- th component carrier at the subframe k Transient transport block size, and ER _i is the bit error rate of the ith component carrier. The ER _i value can be a block error rate or a packet error rate.

In block 808, the device processor can select the component carrier with the lowest quality quality measurement result. If the quality measurement result is the historical data transmission amount of the downlink component carrier, the device processor may compare the CQI value or the TB size value of each downlink component carrier, and select the lowest CQI value or the TB size value. Downlink component carrier. In some embodiments, the device processor may first compare the TB size values for each downlink component carrier, and then if the TB size values of the two carriers are equal, then the CQI for each downlink component carrier. Values are compared. If the quality measurement result is the historical data transmission amount of the uplink component carrier, the device processor may compare the MCS value or the TB size value of each uplink component carrier, and select the lowest MCS value or the TB size value. Uplink component carrier. In some embodiments, the device processor may first compare the TB size values for each uplink component carrier, and then if the TB size values of the two carriers are equal, then the MCS for each uplink component carrier. Values are compared. If the quality measurement result is the predicted data throughput of the downlink or uplink component carrier, the device processor can compare the calculated T _i (k) values of each component carrier and select the lowest T The component carrier of the _i (k) value.

In block 810, the device processor may tune away from the selected component carrier to the second subscription during the scheduled tune away. For example, if the first subscription includes the first downlink carrier and the second downlink carrier, the device processor may select a downlink carrier with a lower quality quality measurement result and select the downlink carrier from the selected downlink carrier. Tune away to the second subscription. This maintains a larger overall data throughput on the first subscription during the scheduled tune away. If the transmitter and receiver of the RF resource are accompanied, then any component carrier associated with the selected component carrier is also given a second subscription during the tune away. For example, if the selected downlink component carrier is associated with an uplink component carrier, device processing can be tune away from both the downlink and uplink component carriers to the second subscription. If the transmitter and receiver of the RF resource are not attached, the device processor may select the downlink component carrier and the unassociated uplink component carrier (if necessary) to tune away from the second subscription. If there is only one component carrier in a subset of component carriers, the carrier can be automatically selected for tune away.

If the product quality measurements of all component carriers are equal, the device processor may select a preset component carrier for use in the scheduled round-off. In this manner, method 800 can maximize the overall data throughput of the first subscription when the RF resource of one component carrier of the first subscription is given to the second subscription during the tune away.

Method 800 can be scalable to any number of downlink or uplink component carriers supported by the first subscription. Further, method 800 can be repeated in a loop such that the tune away is performed from the carrier having the lowest quality quality measurement as the carrier link condition changes (eg, as the mobile communication device moves).

9 illustrates a method 900 for determining a subset of component carriers available for use in tune away, in accordance with various embodiments. Referring to FIGS. 1A-3 and 5A-9, the operations of method 900 can be implemented by one or more processors of mobile communication device 200, such as general purpose processor 206, a baseband data machine. Processor 216, or a separate controller (not shown) that can be coupled to memory 214 and baseband data processor 216.

The device processor can perform method 900 when determining, in the mobile communication device, a first subscription of a subset of component carriers available for use in tune away from the second subscription (i.e., block 804 in method 800). In decision block 902, the device processor can determine if there are any downlink component carriers in the first subscription that are not associated with any of the uplink component carriers. Certain downlink component carriers in the first subscription may be associated with one or more uplink component carriers. However, if the downlink component carrier is not associated with any uplink component carrier, then selecting such a carrier for tune away will not have any effect on the uplink capability of the first subscription during tune away. Therefore, the unassociated downlink component carrier can be used for tune away.

In response to determining that at least one downlink component carrier is not associated with any uplink component carrier (i.e., decision block 902 = "Yes"), the device processor may not block any uplinks in block 904. The downlink component carriers associated with the component carriers are included in a subset of the component carriers. The device processor can then calculate a quality measurement result for each of the component carriers of the subset of component carriers in block 806 of method 800.

In response to determining that all of the downlink component carriers are associated with at least one uplink component carrier (i.e., decision block 902 = "No"), the device processor can determine the RF in the mobile communication device in decision block 906. Whether the receiver and transmitter antenna of the resource are attached. When the receiver and transmitter are attached at any time, both the uplink and downlink component carriers of the same SCC are given another subscription during the tune away. If the transmitter and the antenna are not attached, the downlink component carrier of one SCC may be given to the second subscription during the handover, and if necessary, the uplink component carrier of the other SCC may be given Second subscription. Thus, the device processor can separately make quality quality result selections for the downlink and uplink carriers.

In response to determining that the receiver and transmitter antennas are not attached (i.e., decision block 906 = "No"), the device processor may, in block 908, all of the first subscribed component carriers (downlink and uplink) Both) are included in a subset of component carriers. If the second subscription does not need to transmit data during the tune away, the uplink component carrier may not need to be added to a subset of the component carriers. The device processor may then calculate a quality measurement result for each of the downlink component carriers (and, if necessary, the uplink component carriers) of the subset of component carriers in block 806 of method 800.

In response to determining that the receiver and transmitter antennas are accompanied (i.e., decision block 906 = "Yes"), the device processor can determine in decision block 910 whether the downlink data transmission amount on the first subscription is greater than the uplink. Road data transmission volume.

In response to determining that the amount of downlink data transmission is not greater than the amount of uplink data transmission (i.e., decision block 910 = "No"), the device processor may include, in block 912, all of the uplink component carriers of the first subscription. In a subset of component carriers. For example, if the first subscription is sending more data than it is receiving, the tune away will affect the amount of uplink data transmission more than the amount of downlink data transmission. In this case, selecting the component carrier used in the tune away may be based on the quality measurement result of the uplink component carrier. The device processor can then calculate a quality measurement result for a subset of the component carriers in block 806 of method 800.

In response to determining that the amount of downlink data transmission is greater than the amount of uplink data transmission (ie, decision block 910 = "Yes"), in block 914, the device processor can include all of the downlink component carriers of the first subscription. In a subset of component carriers. For example, if the first subscription is receiving more data than it is transmitting, the tune away will affect the amount of downlink data transmission more than the amount of uplink data transmission. In this case, the component carrier selected for use in the tune away should be based on the quality measurement result of the downlink component carrier. The device processor can then calculate a quality measurement result for a subset of the component carriers in block 806 of method 800. Thus, method 900 provides a method for deciding a subscription for a subset of available component carriers.

Various embodiments may be implemented with any of a variety of computing devices, one example of which is illustrated in FIG. 10 (e.g., mobile communication device 1000). According to various embodiments, the mobile communication device 1000 may be similar to the mobile communication device 102 as described with reference to Figures 1A and 1 B and the multi-SIM communication device 200 as described with reference to Figure 2 . Likewise, the mobile communication device 1000 can implement the methods 800 and 900.

Referring to FIGS. 1 through 3 and 5A through 10, the mobile communication device 1000 can include a processor 1002 coupled to the touch screen controller 1004 and internal memory 1006. Processor 1002 may be one or more multi-core integrated circuits that are designated for general purpose or dedicated processing tasks. Internal memory 1006 can be volatile or non-volatile memory and can also be secure and/or encrypted memory or non-secure and/or unencrypted memory, or can be any combination thereof. The touch screen controller 1004 and the processor 1002 can also be coupled to a touch screen panel 1012 such as a resistive touch screen, a capacitive touch screen, an infrared touch screen, or the like. Additionally, the display of the mobile communication device 1000 does not need to have touch screen capabilities.

The mobile communication device 1000 can have one or more cellular network transceivers 1008 coupled to the processor 1002 and one or more antennas 1010 and configured to transmit and receive cellular communications. One or more transceivers 1008 and one or more antennas 1010 can be used with the circuits mentioned herein for implementing the various embodiment methods. The mobile communication device 1000 can include one or more SIM cards 1016 coupled to one or more transceivers 1008 and/or processor 1002 and can be configured as described herein.

The mobile communication device 1000 can also include a speaker 1014 for providing audio output. The mobile communication device 1000 can also include a housing 1020 constructed of a combination of plastic, metal, or material for including all or some of the components discussed herein. The mobile communication device 1000 can include a power source 1022 coupled to the processor 1002, such as a disposable or rechargeable battery. A rechargeable battery can also be coupled to the peripheral device port to receive charging current from a source external to the mobile device 1000. The mobile communication device 1000 can also include a physical button 1024 for receiving user input. The mobile communication device 1000 can also include a power button 1026 for turning the mobile communication device 1000 on and off.

The foregoing method descriptions and program flow diagrams are provided by way of illustration only and are not intended to be As will be recognized by those of ordinary skill in the art to which the present invention pertains, the order of the operations in the foregoing embodiments can be performed in any order. Words such as "after", "subsequent", "next", etc. are not intended to limit the order of the operations; these words are simply used to guide the reader through the description of the method. Further, any reference to a claim element in the singular, "a" or "an"

Although the terms "first" and "second" are used herein to describe data transmission associated with a SIM and data reception associated with a different SIM, such identifiers are for convenience only and do not imply Various embodiments are limited to a particular order, order, network type, or carrier.

The various illustrative logical blocks, modules, circuits, and algorithm operations described in connection with the embodiments disclosed herein can be implemented as an electronic hardware, a computer software, or a combination of both. To clearly illustrate this interchangeability of hardware and software, various illustrative components, blocks, modules, circuits, and operations have been described herein generally in terms of their functionality. Whether such functionality is implemented as hardware or software depends on the particular application and design constraints imposed on the overall system. Those of ordinary skill in the art can use different methods to implement the described functions for each particular application, but such implementation decisions should not be construed as causing a departure from the scope of the patent application.

Hardware for implementing the various illustrative logic units, logic blocks, modules, and circuits described in connection with the aspects disclosed herein may be implemented or carried out using a general purpose processor, a digital signal processor (DSP), Special Application Integrated Circuits (ASICs), Field Programmable Gate Arrays (FPGAs) or other programmable logic devices, individual gate or transistor logic cells, individual hardware components, or designed to perform the functions described herein. Any combination thereof. A general purpose processor may be a microprocessor, but in the alternative, the processor may be any conventional processor, controller, microcontroller, or state machine. The processor may also be implemented as a combination of computing devices, such as a combination of a DSP and a microprocessor, a plurality of microprocessors, one or more microprocessors in conjunction with a DSP core, or any other such configuration. Alternatively, certain operations or methods may be performed by circuitry dedicated to a given function.

In one or more exemplary aspects, the functions described can be implemented in hardware, software, firmware, or any combination thereof. If implemented in software, the function can be stored as one or more instructions or code on the non-transitory computer readable medium or non-transitory processor readable medium. The operations of the methods or algorithms disclosed herein may be embodied in a processor executable software module, which may reside on a non-transitory computer readable or processor readable storage medium. The non-transitory computer readable or processor readable storage medium can be any storage medium that can be accessed by a computer or processor. By way of example and not limitation, such non-transitory computer readable or processor readable medium may include: RAM, ROM, EEPROM, flash memory, CD-ROM or other optical disk memory, disk memory or other A magnetic storage device, or any other medium that can be used to store a desired code in the form of an instruction or data structure and that can be accessed by a computer. The disks and optical discs used herein include compact discs (CDs), laser discs, compact discs, digital versatile discs (DVDs), floppy discs, and Blu-ray discs, where the discs are usually magnetically replicated and the discs are optically optically Copy the data. Combinations of storage media may also be included within the scope of non-transitory computer readable and processor readable media. Additionally, the operations of the method or algorithm may be present on non-transitory processor readable media and/or computer readable media as one or any combination or combination of code and/or instructions, non-transitory processing Readable media and/or computer readable media can be incorporated into a computer program product.

The previous description of the disclosed embodiments is provided to enable a person of ordinary skill in the art to make or use the claim. Various modifications to these embodiments will be apparent to those of ordinary skill in the art to which the present invention pertains, and the general principles defined herein may be applied to other embodiments without departing from the invention. The scope of the request item. Therefore, the present invention is not intended to be limited to the embodiments shown herein, but the scope of the inventions

100‧‧‧Communication system
102‧‧‧Mobile communication equipment
106‧‧‧Web server
108‧‧‧Internet
110‧‧‧ cell base station
112‧‧‧Network Operations Center
114‧‧‧Two-way wireless communication link
116‧‧‧Server
150‧‧‧Network Architecture
152‧‧‧Evolved UMTS Terrestrial Radio Access Network (E-UTRAN)
154‧‧‧Evolved Packet Core (EPC)
156‧‧‧Home User Server (HSS)
158‧‧‧Service providers' IP services
160‧‧‧Service Gateway (SGW)
162‧‧‧Action Management Entity (MME)
163‧‧‧ Packet Data Network (PDN) Gateway (PGW)
164‧‧‧Traditional 2G/3G access network
166‧‧‧MSC/VLR
168‧‧‧CS core
170‧‧‧German MSC (GMSC)
172‧‧‧Serving GPRS Support Node (SGSN)
174‧‧‧PS core
176‧‧‧Gateway General Packet Radio Service (GPRS) Support Node (GGSN)
200‧‧‧Multi SIM communication equipment
202‧‧‧SIM interface
204‧‧‧First Identity Module SIM
206‧‧‧General Processor
208‧‧‧Encoder/Decoder (Transcoder)
210‧‧‧Speakers
212‧‧‧ microphone
214‧‧‧ memory
216‧‧‧Based frequency data processor
218‧‧‧RF resources
220a‧‧‧Antenna
220b‧‧‧Antenna
222‧‧‧On-chip system equipment
224‧‧‧Keypad
226‧‧‧Touch screen display
300‧‧‧Communication subsystem
302‧‧‧First SIM
304‧‧‧Second SIM
306‧‧‧Data machine processor
308‧‧‧First transceiver
310‧‧‧Second transceiver
312‧‧‧RF front end
314‧‧‧PCC
316‧‧‧First SCC
318‧‧‧Second SCC
320‧‧‧First subscription
322‧‧‧second subscription
400‧‧‧ Timing diagram
402‧‧‧PCC uplink carrier
404‧‧‧PCC downlink carrier
406‧‧‧First SCC downlink carrier
408‧‧‧Second SCC downlink carrier
410‧‧‧second subscription
412a‧‧‧Transfer
412b‧‧‧Transfer
414a‧‧‧Specific data throughput levels
414b‧‧‧New data delivery level
416‧‧‧data throughput level
420‧‧‧First subscription
500‧‧‧Configuration
510‧‧‧Configuration
520‧‧‧Configuration
530‧‧‧Configuration
600‧‧‧Table
602‧‧‧Downlink carrier
604‧‧‧Downlink carrier
606‧‧‧Channel Quality Indicator (CQI) value
608‧‧‧Downlink transport block (TB) size value
610‧‧‧Downlink Resource Block (RB) size value
612‧‧‧Bit Error Rate (BLER)
614‧‧‧ Packet Error Rate (PER)
616‧‧‧Spectrum efficiency (SE) values
700‧‧‧Table
702‧‧‧First SCC uplink carrier
704‧‧‧Second SCC uplink carrier
706‧‧‧Modulation and Coding Scheme (MCS) values
708‧‧‧Uplink transport block (TB) size value
710‧‧‧Uplink Transient Transport Block (TB) size value
712‧‧‧Bit Error Rate (BLER)
714‧‧‧ Packet Error Rate (PER)
800‧‧‧ method
802‧‧‧ square
804‧‧‧ square
806‧‧‧ square
808‧‧‧ square
810‧‧‧ square
900‧‧‧ method
902‧‧‧Decision box
904‧‧‧ square
906‧‧‧Decision box
908‧‧‧ square
910‧‧‧Decision box
912‧‧‧ squares
914‧‧‧ square
1000‧‧‧Mobile communication equipment
1002‧‧‧ processor
1004‧‧‧Touch screen controller
1006‧‧‧ internal memory
1008‧‧‧Hive Network Transceiver
1010‧‧‧Antenna
1012‧‧‧Touch screen panel
1014‧‧‧ Speaker
1020‧‧‧ Shell
1022‧‧‧Power supply
1024‧‧‧ physical button
1026‧‧‧Power button

The accompanying drawings, which are incorporated in and in the claims

1A is a block diagram of a communication system of a network suitable for use with the various embodiments.

FIG. 1B is a system block diagram of an Evolutionary Packet System (EPS) suitable for use with various embodiments.

2 is a block diagram illustrating a mobile communication device in accordance with various embodiments.

3 is a block diagram illustrating a communication subsystem in a mobile communication device in accordance with various embodiments.

4 is a timing diagram illustrating component carrier selection for tune away on a mobile communication device.

5A-5D are block diagrams illustrating configurations of subscribed component carriers in accordance with various embodiments.

6 illustrates various product quality measurements used in downlink component carrier selection for tune away on a mobile communication device, in accordance with various embodiments.

7 illustrates various product quality measurements used in uplink component carrier selection for tune away on a mobile communication device, in accordance with various embodiments.

FIG. 8 is a flow chart illustrating a method for performing tune away on a mobile communication device in accordance with various embodiments.

9 is a flow chart illustrating a method for determining a subset of component carriers available for use in tune away, in accordance with various embodiments.

10 is a component diagram of an example mobile communication device suitable for use with the various embodiments.

Domestic deposit information (please note according to the order of the depository, date, number)

Foreign deposit information (please note in the order of country, organization, date, number)

(Please change the page separately) No

800‧‧‧ method

802‧‧‧ square

804‧‧‧ square

806‧‧‧ square

808‧‧‧ square

810‧‧‧ square

Claims (28)

A method of performing a tune away from a first subscription to a second subscription on a mobile communication device, wherein the first subscription includes a plurality of component carriers, the method comprising the steps of: determining from the plurality of component carriers A subset of a component carrier that can be used in a scheduled tune away; determining a quality measurement of each component carrier of a subset of the component carriers before or during the scheduled tune away Resulting; selecting a component carrier having a lowest quality quality measurement result in the subset of the component carriers; and tune away from the selected component carrier to the second subscription during the scheduled handover. According to the method of claim 1, wherein the quality measurement result includes a historical data delivery amount before the scheduled handover. The method of claim 2, wherein the historical data delivery amount of the downlink component carrier comprises a transport block size or a channel quality indicator. According to the method of claim 2, the historical data transmission amount of one of the uplink component carriers includes a transmission block size, or a modulation and coding scheme value. The method of claim 1, wherein the quality measurement result includes a predicted data delivery amount during the scheduled handover. According to the method of claim 5, wherein the predicted data delivery amount of the downlink component carrier is determined as SE _i (k) * RB _i (k) * (1 - ER _i ), where SE _i (k) is a spectral efficiency of a component carrier of the i-th subframe k, the RB _i (k) is a resource block size of the i th component carriers subframe k, _i and the ER is the i th A bit error rate of a component carrier. According to the method of claim 5, the predicted data delivery amount of one of the uplink component carriers is determined as instTB _i (k) * (1 - ER _i ), where instTB _i (k) is at subframe k The transit transport block size of the i- th component carrier, and ER _i is the bit error rate of the i- th component carrier. The method of claim 1, wherein determining, from the plurality of component carriers, a subset of a component carrier usable for use in a scheduled round-off includes the steps of: determining whether there is no in the plurality of component carriers a downlink component carrier associated with any uplink component carrier; and in response to determining that there is a downlink component carrier that is not associated with any uplink component carrier in the plurality of component carriers, selecting not to any The downlink component carrier associated with the uplink component carrier is a subset of the component carrier. The method of claim 1, wherein determining a subset of the component carriers usable in a scheduled round-off from the plurality of component carriers comprises the steps of: determining a transmitter and the one of the mobile communication devices Whether a receiver is accompanied; and in response to determining that the transmitter and the receiver in the mobile communication device are not affixed, the plurality of component carriers are selected as a subset of the component carrier. The method of claim 9, wherein determining, from the plurality of component carriers, a subset of a component carrier usable for use in a scheduled round-off includes the steps of: determining a downlink in the plurality of component carriers Whether the amount of data transmission on the component carrier is greater than the amount of data transmission on the uplink component carrier of the plurality of component carriers; in response to determining that the amount of data transmission on the downlink component carrier is greater than that on the uplink component carrier Data transmission amount, selecting the downlink component carrier as a subset of the component carrier; and in response to determining that the data transmission amount on the downlink component carrier is not greater than the data transmission amount on the uplink component carrier, selecting the The uplink component carrier is a subset of the component carrier. The method of claim 1, wherein the tune away from the selected component carrier to the second subscription during the scheduled tune away includes the step of: selecting the selected component during the scheduled tune away Both the carrier and a component carrier associated with the selected component carrier are tune away. A mobile communication device comprising: a radio frequency (RF) resource; and a processor coupled to the RF resource and configured to connect to a first SIM and a second subscription associated with a first subscription An associated second SIM, wherein the first subscription includes a plurality of component carriers, and is configured with processor-executable instructions for: determining from the plurality of component carriers that are available for use in a scheduled a subset of a component carrier used in the tune away; determining a quality measurement result of each component carrier of the subset of the component carriers before or during the scheduled tune away; selecting the component carrier a component carrier having the lowest quality quality measurement result in the subset; and from the selected component carrier to the second subscription during the scheduled handover. The mobile communication device of claim 12, wherein the quality measurement result includes a historical data delivery amount prior to the scheduled transfer. The mobile communication device of claim 13, wherein the historical data throughput of the downlink component carrier comprises a transport block size or a channel quality indicator. According to the mobile communication device of claim 13, the historical data transmission amount of an uplink component carrier includes a transmission block size, or a modulation and coding scheme value. The mobile communication device of claim 12, wherein the quality measurement result includes a predicted amount of data delivery during the scheduled handover. According to the mobile communication device of claim 16, wherein the predicted data throughput of the downlink component carrier is determined as SE _i (k) * RB _i (k) * (1 - ER _i ), where SE _i (k ) is a component carrier of the i-th spectral efficiency a subframe k, the RB _i (k) is the i th component carrier of a resource block size of the subframe k, _i and the ER is the first A bit error rate of i component carriers. According to the mobile communication device of claim 16, the predicted data delivery amount of an uplink component carrier is determined as instTB _i (k) * (1 - ER _i ), wherein instTB _i (k) is a subframe k A transient transport block size of an ith component carrier, and ER _i is a bit error rate of the ith component carrier. The mobile communication device of claim 12, wherein the processor is also configured to have a sub-carrier for determining a component carrier usable in a scheduled tune away from the plurality of component carriers by performing the following operation The set of processor-executable instructions: determining whether there is a downlink component carrier that is not associated with any uplink component carrier in the plurality of component carriers; and in response to determining that there is no or any of the plurality of component carriers A downlink component carrier associated with an uplink component carrier, the downlink component carrier not associated with any uplink component carrier is selected as a subset of the component carrier. The mobile communication device of claim 12, wherein the processor is also configured to have a sub-carrier for determining a component carrier usable in a scheduled tune away from the plurality of component carriers by performing the following operation a set of processor executable instructions: determining whether a transmitter and a receiver in the mobile communication device are accompanied; and in response to determining that the transmitter and the receiver in the mobile communication device are not accompanied, selecting The plurality of component carriers serve as a subset of the component carriers. The mobile communication device of claim 20, wherein the processor is further configured to have a sub-carrier for determining a component carrier usable for use in a scheduled tune away from the plurality of component carriers by performing the following operation The set processor executable instructions: determining whether a data transmission amount on a downlink component carrier in the plurality of component carriers is greater than a data transmission amount on an uplink component carrier in the plurality of component carriers; The amount of data transmission on the downlink component carrier is greater than the amount of data transmission on the uplink component carrier, the downlink component carrier is selected as a subset of the component carrier; and in response to determining the downlink component carrier The amount of data transmission is not greater than the amount of data transmission on the uplink component carrier, and the uplink component carrier is selected as a subset of the component carrier. The mobile communication device of claim 12, wherein the processor is also configured to have a processor for tune away from the selected component carrier to the second subscription during the scheduled tune away via performing the following operations Executable instructions: tune away from both the selected component carrier and a component carrier associated with the selected component carrier during the scheduled tune away. A non-transitory processor readable medium having processor-executable instructions stored thereon, the processor-executable instructions being configured to cause a processor of a mobile communication device to perform operations comprising: Determining, in a plurality of component carriers of a first subscription on the mobile communication device, a subset of a component carrier usable for use in a scheduled handover of a second subscription to the mobile communication device; a scheduled quality measurement result of each of the component carriers of the subset of the component carriers before or during the scheduling; selecting a component carrier having the lowest quality quality measurement result in the subset of the component carriers; During the scheduled tune away, the selected component carrier is tune away to the second subscription. The non-transitory processor readable medium according to claim 23, wherein the quality measurement result includes a historical data delivery amount prior to the scheduled handover. The non-transitory processor readable medium according to claim 23, wherein the quality measurement result includes a predicted data delivery amount during the scheduled handover. A mobile communication device, comprising: determining, from a plurality of component carriers of a first subscription on the mobile communication device, for tune-off in a scheduled second subscription to the mobile communication device a unit of a subset of a component carrier used; a unit for determining a quality measurement result of each component carrier of a subset of the component carriers before or during the scheduled handover; for selecting a unit of a component carrier having a lowest quality quality measurement result in a subset of the component carriers; and means for tune away from the selected component carrier to the second subscription during the scheduled handover. The mobile communication device of claim 26, wherein the quality measurement result includes a historical data delivery amount prior to the scheduled transfer. The mobile communication device of claim 26, wherein the quality measurement result includes a predicted amount of data delivery during the scheduled handover.